GB1147057A - Injection moulding machine - Google Patents

Injection moulding machine

Info

Publication number
GB1147057A
GB1147057A GB38847/66A GB3884766A GB1147057A GB 1147057 A GB1147057 A GB 1147057A GB 38847/66 A GB38847/66 A GB 38847/66A GB 3884766 A GB3884766 A GB 3884766A GB 1147057 A GB1147057 A GB 1147057A
Authority
GB
United Kingdom
Prior art keywords
cylinder
valve
screw
pressure
zone
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB38847/66A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Buehler AG
Original Assignee
Buehler AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Buehler AG filed Critical Buehler AG
Publication of GB1147057A publication Critical patent/GB1147057A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/58—Details
    • B29C45/63—Venting or degassing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
    • B29C45/48—Plasticising screw and injection screw comprising two separate screws

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

1,147,057. Injection moulding machines. GEBR. BUHLER. 31 Aug., 1966 [16 Sept., 1965], No. 38847/66. Heading B5A. Plastics material to be injected into a mould 3 is preplasticized in a cylinder 40 by a screw 43, degassed in a chamber 70 and fully plasticized in an injection cylinder 10 containing a rotatable and longitudinally movable screw 13 having different depths of thread and/or a thread of variable pitch. The cylinder 40 is pivotably mounted at 26 on the cylinder 10 and is connected via an interchangeable nozzle 42 to the chamber 70 which is itself removably attached to an inlet 15 of the cylinder 10 and has a transparent cover 74. The screws 13, 43 are rotated by hydraulic motors 25, 55 respectively, connected in series, the former being controlled by a valve 102, the latter being controlled relative to the adjustment of the former by a valve 109. During rotation of the screws and feeding of material from a hopper 48, a pressure builds up at the tip 431 of the screw 43 due to a predetermined pressure set in a cylinder 60, by a valve 120, causing retraction of the screw 43 from its nozzle 42. When the pressure exceeds the predetermined value due to the oil in a delivery line 95, preplasticized material is injected into the degassing chamber 70 and thence to the injection cylinder at a feed zone 133. It is then conveyed to a zone 131, further compression and complete plasticizing taking place in a zone 132. Successive feeding of material causes retraction of the screw 13 which is counteracted by a pressure acting through an outflow valve 114. When sufficient material is between zone 131 and the nozzle 12, material is injected in one shot, the velocity and pressure of which are determined by a regulating valve 111 and a pressure setting valve 112 respectively, the valve 113 being set to connect valves 112, 114, the oil flowing through a non-return valve 115 to initiate the shot. In a modification (Fig. 2, not shown) regulating valves 125, 126 are coupled so that if one is adjusted the other adjusts accordingly, the speed of motor 55 then always being at a certain ratio to that of motor 25. Heating and/or cooling ducts 16, 17 and 46, 47 may be provided. Electric motors may replace the hydraulic motors 25, 55. The cylinder 43 and chamber 70 may be removable.
GB38847/66A 1965-09-16 1966-08-31 Injection moulding machine Expired GB1147057A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1286765A CH445838A (en) 1965-09-16 1965-09-16 Screw injection molding machine

Publications (1)

Publication Number Publication Date
GB1147057A true GB1147057A (en) 1969-04-02

Family

ID=4387123

Family Applications (1)

Application Number Title Priority Date Filing Date
GB38847/66A Expired GB1147057A (en) 1965-09-16 1966-08-31 Injection moulding machine

Country Status (6)

Country Link
US (1) US3481001A (en)
BE (1) BE686963A (en)
CH (1) CH445838A (en)
DE (1) DE1529815A1 (en)
GB (1) GB1147057A (en)
SE (1) SE320491B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4792424A (en) * 1984-01-10 1988-12-20 Loman Henricus G M Method of injection molding PVC products

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1539204A (en) * 1967-08-03 1968-09-13 Plastimonde Improvements to the plastic molding process by adjusting the control of the movement of the mold and the injection piston
JPS4979667U (en) * 1972-11-06 1974-07-10
GB1459140A (en) * 1973-07-02 1976-12-22 Intercole Automation Inc Apparatus for compounding and conveying injection moulding materials
US3880360A (en) * 1973-12-05 1975-04-29 Ford Motor Co Method of preparing homogeneous thermosetting powder paint composition
US3888393A (en) * 1974-01-22 1975-06-10 Mordeki Drori Injection molder with ram movable indepently of screw feeder
US4143108A (en) * 1976-08-26 1979-03-06 Monsanto Company Method of injection molding nitrile articles
US4387834A (en) * 1979-10-01 1983-06-14 Hpm Corporation Combination thermoplastic and glass loaded thermosetting injection molding machine and method for operating same
JPH0539858Y2 (en) * 1988-04-11 1993-10-08
US5076777A (en) * 1990-12-20 1991-12-31 Cincinnati Milacron Inc. Apparatus for coextruding plastics materials
AT399311B (en) * 1992-09-25 1995-04-25 Engel Gmbh Maschbau INJECTION UNIT FOR AN INJECTION MOLDING MACHINE
JP2668328B2 (en) * 1994-02-16 1997-10-27 日精樹脂工業株式会社 Injection molding machine venting equipment
JP3504014B2 (en) * 1995-03-24 2004-03-08 東芝機械株式会社 Extrusion method and apparatus for devolatilization of solid resin material
US5601773A (en) * 1995-05-12 1997-02-11 Cincinnati Milacron Inc. Co-injection machine
US5770245A (en) * 1995-09-18 1998-06-23 Nissei Plastic Industrial Co., Ltd. Preplasticizing injection machine
JP3066521B2 (en) * 1996-04-30 2000-07-17 日精樹脂工業株式会社 Control method of pre-plastic injection molding machine
DE19959174B4 (en) * 1999-12-08 2006-03-23 A-Z Formen- Und Maschinenbau Gmbh extrusion device
US7390184B2 (en) * 2005-11-09 2008-06-24 Centoco Plastics Limited Dual injection manifold
JP4390789B2 (en) * 2006-08-02 2009-12-24 宏平 澤 Integrated apparatus having a kneading part and an injection part
DE102012101280A1 (en) 2012-02-17 2013-08-22 Exipnos Ug Injection Molding
JP5802689B2 (en) * 2013-01-16 2015-10-28 日精樹脂工業株式会社 Two-component injection machine
CN109986755A (en) * 2018-12-03 2019-07-09 浙江华晨螺杆制造有限公司 A kind of segmented plasticizing injecting device and its processing technology
CN111716631A (en) * 2020-06-30 2020-09-29 重庆欧洛森智能科技研究院有限公司 Extrusion molding equipment and method for integrally molded door frame
CN114147919B (en) * 2021-10-19 2023-08-01 宁波力松注塑科技有限公司 Injection molding machine nozzle and injection molding machine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL96727C (en) *
US3067462A (en) * 1959-06-10 1962-12-11 Blaw Knox Co Extruder for drying synthetic rubber
US3254371A (en) * 1963-11-01 1966-06-07 Husky Mfg Tool Works Ltd Injection-molding machine
US3148231A (en) * 1961-03-20 1964-09-08 Eastman Kodak Co Plastic extrusion, apparatus and control
US3253303A (en) * 1962-06-20 1966-05-31 Rexford H Bradt Injection molding apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4792424A (en) * 1984-01-10 1988-12-20 Loman Henricus G M Method of injection molding PVC products

Also Published As

Publication number Publication date
US3481001A (en) 1969-12-02
DE1529815A1 (en) 1970-01-08
CH445838A (en) 1967-10-31
SE320491B (en) 1970-02-09
BE686963A (en) 1967-03-15

Similar Documents

Publication Publication Date Title
GB1147057A (en) Injection moulding machine
US3941534A (en) Injection molding control system
US4722679A (en) Injection molding machine
US3632255A (en) Extrusion apparatus
US3605188A (en) Plastic mixer and extruder
GB1450188A (en) Injection moulding control
JPS5947980B2 (en) Thermoplastic resin extrusion method
JPS60199623A (en) Plastication control of injection molding machine
US2705343A (en) Upwardly ejecting injection machine with plasticizing chamber
US3492700A (en) Injection-molding machine
US3911677A (en) Injection moulding machines
GB1120320A (en) Extruders for visco-elastic plastics material
US3655313A (en) Plastic injection molding apparatus
US4802267A (en) Method and apparatus for controlling retracting speeds of injection molding machines
GB992310A (en) Apparatus for plastifying and extruding thermoplastic material
GB1377530A (en) Injection moulding
US4062479A (en) Non-return valve assemblies in injection molding machines
DE3373288D1 (en) Method and apparatus for the treatment of plastifiable material
GB1009227A (en) Injection moulding
GB1239838A (en) An injection moulding apparatus
GB840512A (en) Improvements in or relating to extrusion apparatus
GB1121661A (en) Improvements relating to the moulding of shoe soles
US3259940A (en) Adjustable drive in plastic extruder
GB1171307A (en) Injection Moulding Machine
US3784065A (en) Injection